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Groups > linux.kernel > #1670488
| From | guangrong.xiao@gmail.com |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock |
| Date | 2017-06-20 11:20 +0200 |
| Message-ID | <tUnuh-6Hb-9@gated-at.bofh.it> (permalink) |
| References | <tUnuh-6Hb-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Xiao Guangrong <xiaoguangrong@tencent.com>
mmu_spte_age() is under the protection of mmu-lock, no reason to use
mmu_spte_get_lockless()
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
---
arch/x86/kvm/mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 7711953..dc00c32 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -852,7 +852,7 @@ static u64 restore_acc_track_spte(u64 spte)
/* Returns the Accessed status of the PTE and resets it at the same time. */
static bool mmu_spte_age(u64 *sptep)
{
- u64 spte = mmu_spte_get_lockless(sptep);
+ u64 spte = *sptep;
if (!is_accessed_spte(spte))
return false;
--
2.9.4
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[PATCH v2 7/7] KVM: MMU: stop using mmu_spte_get_lockless under mmu-lock guangrong.xiao@gmail.com - 2017-06-20 11:20 +0200
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